Happy to help James, thanks for reaching out! Choosing the right M-3 ramp door spring system really comes down to matching your specific trailer and door. The biggest factor is the weight of your ramp door. The spring system is designed to help lift…
I'd go with a double spring personally, Scott. These are typically going to be used on more heavy duty applications like your enclosed trailer with a pretty heavy door. In order to get a proper replacement though, you'd need measure the width…
Thanks for your question, Dale! That’s actually a pretty smart way to use these springs. We do have a couple of higher-capacity options that may work better for a heavier shed door: - Part #M326FR – 6-1/2 ft. long and rated for 150 lbs - Part #M346FR…
Hey Greg, welcome back! So this is a great question but for a Dexter 3,500-lb axle, the castle/spindle nut does not stay torqued to a specific ft-lb value. Dexter's official bearing-adjustment procedure is while rotating the hub, tighten the…
The cables with the Conventional Ramp Door Springs like part #M394FR are attached to the door via anchor brackets which are included with the kit. I have attached below the excerpt from the install instructions below which goes over the cable…
Yes. The Conventional Ramp Door Spring for 8' Wide Enclosed Trailer #M394FR fits 67-3/4" to 95" wide trailer doors. Your door with the brackets 81" apart falls in this range, so this spring will work well for you.
Hey Rene, so the ramp door springs like the part #M394FR are not all identical in spec and capacity. So what that means is a double spring setup does not mean it's just the same spring on both ends compared to a single spring. This is why the…
Hi Cody! We do have a couple alternatives that will work the same, but the Fulton FHDPB330301 swing away kit is not currently available. It may be at some point in the future, but with their parent company (First Brands) having "issues"…
For a 6' wide trailer we have the 120lb capacity #362SA6 and 80lb capacity #M364FR ramp door springs from M-3. Both of these options can be shortened by sliding the mounting bracket down and cutting the tube to fit your trailer. The #362SA6 fits…
The spring with the black cable drum should always be mounted to your LEFT, standing on the inside of the trailer looking out. This is very important for proper operation. Dual spring systems, like #ERS160D96, have a red-coned and a black-coned…
With your over head garage door springs frequently breaking you may not have the correct capacity springs for your door. We have kits that range from 80LBS #M374FR up to 250LBS #CB250D96SHD. The weight rating is not the door weight but the amount of…
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